CN109404369A - A kind of multifunction hydraulic maintenance system - Google Patents
A kind of multifunction hydraulic maintenance system Download PDFInfo
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- CN109404369A CN109404369A CN201811523554.4A CN201811523554A CN109404369A CN 109404369 A CN109404369 A CN 109404369A CN 201811523554 A CN201811523554 A CN 201811523554A CN 109404369 A CN109404369 A CN 109404369A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/04—Special measures taken in connection with the properties of the fluid
- F15B21/041—Removal or measurement of solid or liquid contamination, e.g. filtering
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B19/00—Testing; Calibrating; Fault detection or monitoring; Simulation or modelling of fluid-pressure systems or apparatus not otherwise provided for
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
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- Analytical Chemistry (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The present invention provides a kind of multifunction hydraulic maintenance systems, first primary filter, oil pump, the first fine filter, first switch valve and main reversing valve are sequentially connected by pipeline, first switch valve is normally open, main reversing valve is connected with the first external interface C and the second external interface D, second switch valve and several groups secondary fine filter are connected between the entrance and outlet of the first switch valve, second switch valve is normally off, third switch valve and the second overflow valve are connected between the entrance and outlet of oil pump, third switch valve is normally off；Cleanliness of hydraulic oil detector is connected between first switch valve outlet and the first fine filter entrance.The present invention, which can treat commissioning device and provide, stablizes power source, has multistage filtering element, can online inherent filtration, clean hydraulic oil is externally provided, and can be filtered in externally oiling, depth-type filtration cleaning can also be carried out, and filter effect can be measured in real time, flexibly and easily.
Description
Technical field
The present invention relates to rotary drilling rig commissioning device, especially a kind of multifunction hydraulic maintenance system.
Background technique
Rotary drilling rig is debugged before factory, since the power match situation of motor and pump is by the shadow loaded
It rings, in order to make the pump of the rotary drilling rig newly assembled, motor reach good power matching state, needs first to be reached with having been subjected to debugging
Debugging pump to preferable matching status carries out load test to the rotary drilling rig that newly assembles with debugging motor, according to obtaining after load
Working condition measurement result come adjust the pump of the rotary drilling rig newly assembled parameter (such as pump aperture, swash plate angle).Currently, rotary digging
Debugging before drilling machine factory mostly carries out on the testing stand of a certain fixed area, or is directly connected to pipeline tested nearby
Rotary drilling rig fuel pump outlet.The position of testing stand is usually fixation, to debug to the rotary drilling rig after assembling, also need
Transport vehicle is wanted, it is very inconvenient；The oil pump of nearest rotary drilling rig is connected to first is that be temporarily laid with pipeline, second is that the tune selected every time
Pump testing is all different from debugging motor (because the position of each rotary drilling rig is different), will increase the debugging for the rotary drilling rig currently debugged
Work, it is therefore, also very inconvenient.
In addition, more granule foreign may be stained with before assembling in the pipeline of rotary drilling rig, it is new hydraulic when being added
After oil, granule foreign can be mixed into new hydraulic oil, made new engine be very easy to generate Caton when in use, renewed again quickly
Oil causes the frequency for renewing oil to increase, and then increases the consumption of human and material resources and financial resources.
Summary of the invention
It is an object of that present invention to provide a kind of multifunction hydraulic maintenance systems, to solve the problems, such as to propose in background technique.
A kind of multifunction hydraulic maintenance system, including fuel tank 1, oil pump 2, motor 10, first the 11, first essence of primary filter
Filter 3, first switch valve 4, main reversing valve 5, the first overflow valve 19.
First primary filter is arranged in fuel tank liquid level hereinafter, first primary filter, oil pump, the first essence filtering
Device, first switch valve and main reversing valve are sequentially connected by pipeline, and the first switch valve is normally open, first switch valve
Entrance is connect with the outlet of the first fine filter, and the outlet of first switch valve connects the oil inlet P of the main reversing valve, main commutation
The oil return inlet T of valve is connected to fuel tank, the actuator port A and actuator port B of the main reversing valve, is connected separately with first and external is connect
Mouth C and the second external interface D, the first external interface C are used to connect the oil inlet or oil outlet of equipment to be debugged, meanwhile,
The second external interface D is used to connect the oil outlet or oil inlet of equipment to be debugged.
The entrance of first overflow valve is connected on the pipeline between fuel pump outlet and the first fine filter entrance, overflow valve
Outlet is connected to the oil return inlet T of fuel tank or main reversing valve.
It is connected in parallel to branch L between the entrance and outlet of the first switch valve, second is connected in series on branch L and is opened
Valve 8 and several groups secondary fine filter 9 are closed, second switch valve is normally off, and the filtering accuracy of each secondary fine filter is high
In the first fine filter, the arrangement mode of each secondary fine filter are as follows: be directed toward the direction of outlet along the entrance of first switch valve, respectively
The filtering accuracy of secondary fine filter gradually rises.
The hydraulic system include the first one-way throttle valve 6 and the second one-way throttle valve 7, first one-way throttle valve and
One end of second one-way throttle valve is separately connected the actuator port A of main reversing valve, actuator port B, first one-way throttle valve
The first external interface C and the second external interface D are separately connected with the other end of the second one-way throttle valve.
It is unidirectional that refined filtration is connected in parallel between first fine filter and the outlet and entrance of each secondary fine filter
Valve 12 and differential pressure pickup 13, the circulating direction of the refined filtration check valve are the direction that outlet is directed toward by the entrance of fine filter,
The cracking pressure of each refined filtration check valve is greater than the filtration resistance of its corresponding fine filter, to guarantee under normal circumstances, hydraulic oil
It is flowed out through fine filter, the pressure difference at differential pressure pickup Real-time Feedback fine filter both ends, and reaches setting threshold values Times in pressure difference
It is alert, fine filter blocking is prompted, fine filter should be replaced.
The entrance of the oil pump is connected with branch S, and branch S is equipped with the second primary filter 14 and the second reversal valve 15,
The outlet of first primary filter is first coupled to the second reversal valve, then is connected at oil pump inlet by branch S, and second changes
It is arranged to the inner oil way structure of valve are as follows: when the first primary filter and oil pump are connected, the second primary filter and oil pump are disconnected；
When second primary filter and oil pump are connected, the first primary filter and oil pump are disconnected.
It is equipped with third external interface E in the entrance side of the second primary filter on branch S, third external interface E is used for
Branch L connect the fuel tank oil outlet of external equipment when opening with branch S, meanwhile, the first external interface C or the second external interface D
External equipment oil return opening is connected, and then depth-type filtration cleaning is carried out to external equipment hydraulic oil.
It is connected in parallel to branch N between the entrance and outlet of the oil pump, third switch valve 26 and are connected on branch N
Two overflow valves 27, institute's third switch valve 26 are normally off.
It is connected in parallel to branch M between the first switch valve outlet and the first fine filter entrance, is connected on branch M
Cleanliness of hydraulic oil detector 16.
Third throttle valve 17 is also connected on the branch M, third throttle valve is for the hydraulic oil stream on controlling brancher M
Amount, so that cleanliness of hydraulic oil detector obtains required detection flows.
Main check valve 18 is connected on pipeline between the fuel pump outlet and the first fine filter entrance, main check valve
Circulating direction is the direction that the first fine filter is directed toward by oil pump, and the entrance of first overflow valve 19 is connected to main check valve
Downstream position.
First pressure gauge 20 is connected on pipeline between the first external interface C and the first one-way throttle valve, it is described
Second pressure gauge 21, the first external interface or are connected on pipeline between second external interface D and the second one-way throttle valve
When two external interfaces are as oil return opening, first pressure gauge or second pressure gauge are respectively used to feed back instant return pressure, thus point
Required return Bian Yu not be realized according to the aperture of throttle valve in the first one-way throttle valve or the second one-way throttle valve is adjusted
Oil stream amount.
Third pressure gauge 22, third pressure are connected on pipeline between the first fine filter entrance and fuel pump outlet
Table is used for Real-time Feedback fuel pump outlet pressure, consequently facilitating in time according to the discharge capacity for needing to adjust oil pump of load.
It is provided with the air cleaner 23 for filtering the impurity such as dust on the fuel tank tank wall, is equipped with liquidometer in fuel tank
24 are used for the liquid level in fuel tank and are increased to setting height value alarm, liquid level alarm with liquid level alarm 25, liquidometer
For in fuel tank liquid level be reduced to setting value alarm.
The portable debugging is arranged on trolley with hydraulic power unit, and the trolley walks wheel with solid rubber, and
Solid rubber walks wheel will not automatic moving to guarantee on the ground for having certain slope with lockable mechanism.
The oil pump uses high-pressure plunger variable pump, and the first switch valve, second switch valve and third switch valve are adopted
Use reversal valve.
The present invention at least has the advantages that
Multifunction hydraulic maintenance system of the invention can treat commissioning device and complete movable pump station function, can and be equipped with more
Weight safety protection facility is treated commissioning device and is provided and stablize power source, has multistage filtering element, can carry out online inherent filtration,
Clean hydraulic oil is provided to external equipment, oiling function is also equipped with, and can filter in oiling, it is clear depth-type filtration can also to be carried out
Clean, filtering accuracy grade can change with needing to change, and flexibly and easily, the present invention is additionally provided with cleanliness of hydraulic oil detection device, need
Whether when wanting, it is qualified to the hydraulic oil real-time detection filtered to open cleanliness of hydraulic oil detection device, is both avoided that
Excessively filtering, and be avoided that and filter inadequate situation, it is very suitable to the engineering machinery debugged and safeguarded, especially body
The biggish rotary drilling rig of product.
Other than objects, features and advantages described above, there are also other objects, features and advantages by the present invention.
Below with reference to figure, the present invention is described in further detail.
Detailed description of the invention
The attached drawing constituted part of this application is used to provide further understanding of the present invention, schematic reality of the invention
It applies example and its explanation is used to explain the present invention, do not constitute improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is the hydraulic system principle figure of the multifunction hydraulic maintenance system of the preferred embodiment of the present invention.
In figure: 1- fuel tank, 2- oil pump, the first fine filter of 3-, 4- first switch valve, 5- main reversing valve, 6- first are unidirectional
Throttle valve, the second one-way throttle valve of 7-, 8- second switch valve, 9- grade fine filter, the second fine filter of 91-, 92- third essence
Filter, 10- motor, the first primary filter of 11-, 12- refined filtration check valve, 13- differential pressure pickup, 14 second primary filters
Device, the second reversal valve of 15-, 16- cleanliness of hydraulic oil detector, 17- third throttle valve, the main check valve of 18-, the first overflow of 19-
Valve, 20- first pressure gauge, 21- second pressure gauge, 22- third pressure gauge, 23- air cleaner, 24- liquidometer, 25- liquid level
Alarm, 26- third switch valve, the second overflow valve of 27-.
Specific embodiment
The embodiment of the present invention is described in detail below in conjunction with attached drawing, but the present invention can be limited according to claim
Fixed and covering multitude of different ways is implemented.
Referring to Fig. 1, a kind of multifunction hydraulic maintenance system, including Trolley and the hydraulic pressure system being loaded on Trolley
System, referring to Fig. 1, the hydraulic system include fuel tank 1, oil pump 2, motor 10, the first primary filter 11, the first fine filter 3,
First switch valve 4, main reversing valve 5, the first one-way throttle valve 6, the second one-way throttle valve 7.Motor 10 passes through shaft coupling and oil pump 2
Connection.
First primary filter is arranged in fuel tank liquid level hereinafter, first primary filter, oil pump, the first essence filtering
Device, first switch valve and main reversing valve are sequentially connected by pipeline, and the first switch valve is normally open, first switch valve
Entrance is connect with the outlet of the first fine filter, and the outlet of first switch valve connects the oil inlet P of the main reversing valve, main commutation
The oil return inlet T of valve is connected to fuel tank, and one end of first one-way throttle valve and the second one-way throttle valve is separately connected main commutation
Actuator port A, the actuator port B of valve, the other end of first one-way throttle valve and the second one-way throttle valve are separately connected
There are the first external interface C and the second external interface D, first external interface is used to connect the oil inlet of equipment to be debugged or goes out
Hydraulic fluid port, meanwhile, second external interface is used to connect the oil outlet or oil inlet of equipment to be debugged.
It is connected in parallel to branch L between the entrance and outlet of the first switch valve, second is connected in series on branch L and is opened
Valve 8 and several groups secondary fine filter 9 are closed, second switch valve is normally off, and the filtering accuracy of each secondary fine filter is high
In the first fine filter, the arrangement mode of each secondary fine filter are as follows: be directed toward the direction of outlet along the entrance of first switch valve, respectively
The filtering accuracy of secondary fine filter gradually rises.
It is unidirectional that refined filtration is connected in parallel between first fine filter and the outlet and entrance of each secondary fine filter
Valve 12 and differential pressure pickup 13, the circulating direction of the refined filtration check valve are the direction that outlet is directed toward by the entrance of fine filter,
The cracking pressure of each refined filtration check valve is greater than the filtration resistance of its corresponding fine filter, to guarantee under normal circumstances, hydraulic oil
It is flowed out through fine filter, the pressure difference at differential pressure pickup Real-time Feedback fine filter both ends, and reaches setting threshold values Times in pressure difference
It is alert, fine filter blocking is prompted, fine filter should be replaced, fine filter blocks to pressure the unlatching pressure for reaching refined filtration check valve
When power, hydraulic oil can bypass fine filter and flow out from refined filtration check valve.
The entrance of the oil pump is connected with branch S, and branch S is equipped with the second primary filter 14 and the second reversal valve 15,
The outlet of first primary filter is first coupled to the second reversal valve, then is connected at oil pump inlet by branch S, branch S
On in the entrance side of the second primary filter have a third external interface E, third external interface E in branch L and branch S for opening
Open, first switch valve 4 close when connect external equipment fuel tank oil outlet, meanwhile, the first external interface C or the second external interface
D connection external equipment oil return opening, and then depth-type filtration cleaning is carried out to external equipment hydraulic oil.In the present embodiment, the second commutation
Valve is two-position four way change valve, and when the second reversal valve attonity, the first primary filter and fuel tank and oil pump are connected, and second is primary
Filter and oil pump disconnect, and when second reversal valve has movement, the second primary filter and external equipment and oil pump are connected, the
One primary filter and oil pump disconnect.
In the present embodiment, the second primary filter is magnetic oil absorption filter, can adsorb the metal impurities in oil liquid and filter
It removes.In the present embodiment, the filtering accuracy of the first primary filter and the second primary filter is 100 μm, the first fine filter 3
Filtering accuracy be 20 μm, secondary fine filter 9 altogether be equipped with twice, including the second fine filter being connected in series on branch L
91 and fine filter 92, the filtering accuracy of the second fine filter is 10 μm, and the filtering accuracy of third fine filter is 5 μm.Respectively
Quick-release connector is all arranged in the outlet of grade fine filter and entrance, facilitates dismounting and change at any time, when needs, the first fine filter
Also dismountable or replacement position, can any transform filter road number and per filtering accuracy together as needed when use.
Branch S is opened simultaneously with branch L, can be used for before factory, and the filter cleaning of depth is carried out to hydraulic oil in equipment,
The original cleanliness for guaranteeing equipment hydraulic oil extends the service life of hydraulic oil, reduces the frequency of changing oil.
It is connected in parallel to branch N between the entrance and outlet of the oil pump, third switch valve 26 and are connected on branch N
Two overflow valves 27, institute's third switch valve 26 are normally off, and third switch valve 26 when branch L is opened with branch S for opening
Branch N is opened, the outlet of the second overflow valve and the entrance of oil pump are correspondingly connected with, for rising when oil pump is not connected to fuel tank to system
Decompression protection effect, leads to oil pump inlet end for pressure release oil in system overpressure.In use, can be by the setting pressure of the first overflow valve
Power is disposed above the set pressure of the second overflow valve, when branch N is not turned on, provides safeguard protection effect by the first overflow valve,
When branch N is opened, the first overflow valve does not work.To external equipment provide power source during, when system pressure not
When can be excessively high, branch N can be opened, when load needs elevated pressures, then closes branch N.
It is connected in parallel to branch M between the first switch valve outlet and the first fine filter entrance, is connected on branch M
Cleanliness of hydraulic oil detector 16 and third throttle valve 17, cleanliness of hydraulic oil detector at regular intervals will be in pipeline
Hydraulic oil sampling, and analyze whether the grain diameter in oil liquid meets the requirements, after continuous several times (as three times) sampling is qualified
The case where automatic to issue prompt, prompting and filtering is completed, and oil pump can stop, and has not only been avoided that filtering not enough, but also has been avoided that excessive filtering,
The grain diameter detection threshold value of cleanliness of hydraulic oil detector can be adjusted voluntarily, in order to adjust filtering and detection essence as needed
Degree.Third throttle valve is for the hydraulic fluid flow rate on controlling brancher M, so that cleanliness of hydraulic oil detector obtains required detection
Flow.
Main check valve 18 is connected on pipeline between the fuel pump outlet and the first fine filter entrance, main check valve
Circulating direction is the direction that the first fine filter is directed toward by oil pump.
The hydraulic system includes overflow valve 19, and the entrance of overflow valve is connected between main check valve and the first fine filter
Pipeline on, the outlet of overflow valve is connected to the oil return inlet T of fuel tank or main reversing valve, and in this system, overflow valve plays peace to system
Full guard effect, is used for the timely pressure release when system pressure is excessively high.
First pressure gauge 20 is connected on pipeline between the first external interface C and the first one-way throttle valve, it is described
Second pressure gauge 21, the first external interface or are connected on pipeline between second external interface D and the second one-way throttle valve
When two external interfaces are as oil return opening, first pressure gauge or second pressure gauge are respectively used to feed back instant return pressure, thus point
Required return Bian Yu not be realized according to the aperture of throttle valve in the first one-way throttle valve or the second one-way throttle valve is adjusted
Oil stream amount.
Third pressure gauge 22, third pressure are connected on pipeline between the first fine filter entrance and fuel pump outlet
Table is used for Real-time Feedback fuel pump outlet pressure, consequently facilitating in time according to the discharge capacity for needing to adjust oil pump of load.
It is provided with the air cleaner 23 for filtering the impurity such as dust on the fuel tank tank wall, is equipped with liquidometer in fuel tank
24 are used for the liquid level in fuel tank and are increased to setting height value alarm, liquid level alarm with liquid level alarm 25, liquidometer
For in fuel tank liquid level be reduced to setting value alarm.
In the present embodiment, oil pump uses high-pressure plunger variable pump, and first switch valve and second switch valve are 2/2-way
Reversal valve, third switch valve are two-position four way change valve.
Multifunction hydraulic maintenance system of the invention is able to achieve multiple functions: the first external interface C and the second external interface D
It is separately connected the oil inlet and oil return opening of external equipment, the stabilization power source of debugging can be provided to external equipment, and oil pump is defeated
Outflow can be adjusted in real time, meet the needs of various working is to flow.Third external interface E is connect with oil drum, first is external
Interface C or the second external interface D connection external equipment fuel tank open branch S, can refuel to external equipment.It connects third is external
Mouthful E is connect with external equipment fuel tank, while by the first external interface C or the second external interface D connection external equipment fuel tank
Cleaning is filtered to external Hydraulic Equipment, opens branch L, multi-level oil filtering can be carried out, realizes depth-type filtration function.When
So, the above-mentioned external equipment in external equipment oiling and filter cleaning is also possible to multifunction hydraulic maintenance system of the present invention certainly
Body.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of multifunction hydraulic maintenance system, which is characterized in that including fuel tank (1), oil pump (2), the first primary filter
(11), the first fine filter (3), first switch valve (4), main reversing valve (5), the first overflow valve (19)；
First primary filter, oil pump, the first fine filter, first switch valve and main reversing valve are successively connected by pipeline
It connects, the first switch valve is normally open, and the entrance of first switch valve is connect with the outlet of the first fine filter, first switch
The outlet of valve connects the oil inlet P of the main reversing valve, and the oil return inlet T of main reversing valve is connected to fuel tank, the main reversing valve
Actuator port A and actuator port B, is connected separately with the first external interface C and the second external interface D, the first external interface C
For connecting the oil inlet or oil outlet of equipment to be debugged, meanwhile, the second external interface D is for connecting equipment to be debugged
Oil outlet or oil inlet；
The entrance of first overflow valve is connected on the pipeline between fuel pump outlet and the first fine filter entrance, the outlet of overflow valve
It is connected to the oil return inlet T of fuel tank or main reversing valve；
It is connected in parallel to branch L between the entrance and outlet of the first switch valve, second switch valve is connected in series on branch L
(8) with several groups secondary fine filter (9), second switch valve is normally off；
It is connected in parallel to branch M between the first switch valve outlet and the first fine filter entrance, is connected on branch M hydraulic
Luboil cleanness detector (16).
2. a kind of multifunction hydraulic maintenance system according to claim 1, which is characterized in that the entrance of the oil pump with go out
It is connected in parallel to branch N between mouthful, third switch valve (26) and the second overflow valve (27) are connected on branch N, the third is opened
Pass valve is normally off；
It being also connected on the branch M third throttle valve (17), third throttle valve is used for the hydraulic fluid flow rate on controlling brancher M,
So that cleanliness of hydraulic oil detector obtains required detection flows.
3. a kind of multifunction hydraulic maintenance system according to claim 2, which is characterized in that the entrance of the oil pump connects
There are branch S, branch S to be equipped with the second primary filter (14) and the second reversal valve (15), first primary filter goes out
Mouth is first coupled to the second reversal valve, then is connected at oil pump inlet by branch S, the inner oil way structure setting of the second reversal valve
Are as follows: when the first primary filter and oil pump are connected, the second primary filter and oil pump are disconnected；Second primary filter connects with oil pump
When logical, the first primary filter and oil pump are disconnected；
It is equipped with third external interface E in the entrance side of the second primary filter on branch S, third external interface E is used in branch L
The fuel tank oil outlet of external equipment is connect when opening with branch S, meanwhile, the first external interface C or the second external interface D connection are outer
Portion's equipment oil return opening, and then depth-type filtration cleaning is carried out to external equipment hydraulic oil.
4. a kind of multifunction hydraulic maintenance system according to claim 1, which is characterized in that the fuel pump outlet and first
It is connected on pipeline between fine filter entrance main check valve (18), the circulating direction of main check valve is to be directed toward first by oil pump
The entrance in the direction of fine filter, first overflow valve (19) is connected to the downstream position of main check valve.
5. a kind of multifunction hydraulic maintenance system according to claim 1, which is characterized in that the hydraulic system includes the
One end point of one one-way throttle valve (6) and the second one-way throttle valve (7), first one-way throttle valve and the second one-way throttle valve
Not Lian Jie main reversing valve actuator port A, actuator port B, first one-way throttle valve and the second one-way throttle valve are in addition
One end is separately connected the first external interface C and the second external interface D.
6. a kind of multifunction hydraulic maintenance system according to claim 5, which is characterized in that the first external interface C
It is connected on pipeline between the first one-way throttle valve first pressure gauge (20), the second external interface D and second is unidirectional
It is connected on pipeline between throttle valve second pressure gauge (21), the first external interface or the second external interface are as oil return opening
When, first pressure gauge or second pressure gauge are respectively used to feed back instant return pressure, thus respectively convenient for according to unidirectional to first
The aperture of throttle valve is adjusted in throttle valve or the second one-way throttle valve, realizes required return flow.
7. a kind of multifunction hydraulic maintenance system according to claim 1, which is characterized in that first fine filter enters
It is connected with third pressure gauge (22) on pipeline between mouth and fuel pump outlet, third pressure gauge is used for Real-time Feedback fuel pump outlet pressure
Power, consequently facilitating in time according to the discharge capacity for needing to adjust oil pump of load.
8. a kind of multifunction hydraulic maintenance system according to claim 1, which is characterized in that be arranged on the fuel tank tank wall
There is the air cleaner (23) for filtering the impurity such as dust, is equipped with liquidometer (24) and liquid level alarm (25), liquid in fuel tank
Position meter in fuel tank liquid level be increased to setting height value alarm, liquid level alarm is used for the liquid level in fuel tank
It is reduced to setting value alarm.
9. a kind of multifunction hydraulic maintenance system according to claim 1, which is characterized in that the portable debugging liquid
Press pumping station layout on trolley, the trolley walks wheel with solid rubber, and solid rubber walks wheel and has lockable mechanism, institute
Oil pump is stated using high-pressure plunger variable pump, the first switch valve, second switch valve and third switch valve are all made of reversal valve.
10. a kind of multifunction hydraulic maintenance system described according to claim 1~any one of 9, which is characterized in that described
Refined filtration check valve (12) and pressure difference are connected in parallel between first fine filter and the outlet and entrance of each secondary fine filter
Sensor (13), the circulating direction of the refined filtration check valve are the direction that outlet is directed toward by the entrance of fine filter, each refined filtration list
It is greater than the filtration resistance of its corresponding fine filter to the cracking pressure of valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811523554.4A CN109404369B (en) | 2018-12-13 | 2018-12-13 | Multifunctional hydraulic maintenance system |
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|---|---|---|---|
| CN201811523554.4A CN109404369B (en) | 2018-12-13 | 2018-12-13 | Multifunctional hydraulic maintenance system |
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| CN109404369A true CN109404369A (en) | 2019-03-01 |
| CN109404369B CN109404369B (en) | 2020-06-19 |
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| CN201811523554.4A Active CN109404369B (en) | 2018-12-13 | 2018-12-13 | Multifunctional hydraulic maintenance system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110580802A (en) * | 2019-10-29 | 2019-12-17 | 南京讯联智能科技有限公司 | Hydraulic pressure filter equipment monitoring and early warning system |
| CN111237270A (en) * | 2020-03-11 | 2020-06-05 | 徐工集团工程机械有限公司 | Rescue equipment vehicle |
| CN112572393A (en) * | 2019-09-30 | 2021-03-30 | 比亚迪股份有限公司 | Device for processing a hydraulic vehicle brake system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112572393A (en) * | 2019-09-30 | 2021-03-30 | 比亚迪股份有限公司 | Device for processing a hydraulic vehicle brake system |
| CN112572393B (en) * | 2019-09-30 | 2022-03-18 | 比亚迪股份有限公司 | Device for processing a hydraulic vehicle brake system |
| CN110580802A (en) * | 2019-10-29 | 2019-12-17 | 南京讯联智能科技有限公司 | Hydraulic pressure filter equipment monitoring and early warning system |
| CN111237270A (en) * | 2020-03-11 | 2020-06-05 | 徐工集团工程机械有限公司 | Rescue equipment vehicle |
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